Headphone controller



FIG. 1 is an upper left front perspective view of a headphone controller;

FIG. 2 is a front elevational view of a headphone controller;

FIG. 3 is a right side elevational view of a headphone controller, the left side is a mirror image thereof;

FIG. 4 is a rear elevational view of a headphone controller;

FIG. 5 is a top plan view of a headphone controller; and,

FIG. 6 is a bottom plan view of a headphone controller.

In the drawings, the broken lines depict unclaimed portions of the article and form no part of the claimed design. 

CLAIM We claim the ornamental design for a headphone controller, as shown and described. 